Improvement in drop-lights



C. HENRY.

DROP-LIGHT.

No.1 92, 994 Patented-July 10,1877.

NJUERS, EHQTOALITHOGIIAFHER. WASHINGTON, D. C.

- height through the means of the cord or chain UNITED S'rn'rns j;

CORNELIUS HENRY, OF EAST SOMERVILLE;MASSACHUSETTS.

IMPROVEMENT INYDROP-LIGHTS.

Specification forming part of Letters Patent No. I 92,994, dated July10, 1877; application filed June 20, 1877.

To all whom it may concern Be it known that I, CORNELIUS HENRY, of EastSomerville, Middlesex county, Massachusetts, have invented a new anduseful Improvement in Drop Lights or Burners, of which the following isa clear, full, and exact description, reference being had to theaccompanying drawings, making a part of this specification, in whichFigure 1 represents a drop light or burner with my improvementsattached. Fig. 2 is a vertical cross-section of the adjusting device.

My invention relates to the class of drop lights or burners suspended byflexible supports; and has for its object the ready adjustment so as tobalance any weight of globe; and is an improvement on the patent grantedto me February 13, 1877, No. 187,380; and it consists of the severalcombinations of devices hereinafter described and claimed.

To enable others skilled in the art to make and use my invention, I willproceed to describe the manner in which I have carried itout.

In the drawing, A represents the frame or bar, and B the weight forbalancing the burners and shades. 0 represents the chain or itsequivalent, by which the light or burner is suspended, and D the rings,or their equivalent, by which the flexible tubing is supported and heldfrom above the light. E represents the flexible tubing, and F representsa clasp, by which the light is raised to any desirable f, attached tothe top of the pivoted arm I of the adjusting-frame G.

The adjusting-frame G is attached to the bar A by means of the sleeve orthimble g, which allows the adjusting-frame to slide along the bar witha view, to a perfect adjustment. On the upperportion of the frame G isthe cross-head H, provided with holes or a slot, as may be preferred,for the purpose of changing the position of the pivoted arm I, with aview to balancing the bar A. The screw S secures the arm [in any fixedposition, as shown in Fig. 1, and the arm is attached at its upper endto the supply-tube by means of the chain or cord J. This chain or cord,however, instead of being attached to the arm I, may be attacheddirectly to the cross-head H, as shown in dotted lines in Fig. 1, andproduces a good result in adjusting and leveling the bar A.

The spring-clasp F is attached, by means of the cord f, to the top ofthe pivoted arm I, and is used for raising or lowering the light, asrequired. This is accomplished by simply changing the position of theclamp on the supply-tube E. The head of the pivoted arm I is providedwith a hook, as shown in Fig. 2, by means of which the whole device canbe readily raised and attached to the gas-pipe above.

It will be readily seen from the above description that any weight ofburner or shade can be readily balanced and the barAbrought to a perfectlevel. If the shade of the burner j be too heavy for the weight B tobalance nicely, it will only be necessary to throw the arm I a littlefarther toward the shade, which reduces the leverage of the shade andincreases that of the weight B. If the weight B be too heavy fortheshade, a slight movement of the pivoted arm I toward the weight obviatesthe difficulty. When perfectly balanced, the screw S secures the arm Iin position.

It is evident that the cross-head H may be slotted with the same result.

It is also evident that the pivoted arm I may be done away with, and thechain J be attached directly to the cross-head H to change the relativeweights and adjust the bar A.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is V 1. In a drop-light, the combination ofthe adjusting sliding frame G, with the bar A, by which the differentweights of burners and shades may be balanced, substantially as hereindescribed. I

2. In a drop-light, the bar A and sliding frame G, provided with thecross-head H, in. combination with the pivoted arm I, substantially asand for the purpose set forth.

3., In .a drop-light, the

bar A and sliding F, and flexible support E, for raising or frameG,provided with the cross-h ea-d H,-in lowering the light, substantiallyas herein set combination with the cord or chain J and flexible supportE, substantially as and for the purpose set forth.

4. The sliding frame G an 1- pivoted arm I, in eombinaition with-cord orchain f, clasp forth. 7

CORNELIUS HENRY.

' Witnesses:

B. T. HENRY, Wm. .H. .FURBER.

